EP1625651B1 - Kompaktantrieb - Google Patents

Kompaktantrieb Download PDF

Info

Publication number
EP1625651B1
EP1625651B1 EP04725306A EP04725306A EP1625651B1 EP 1625651 B1 EP1625651 B1 EP 1625651B1 EP 04725306 A EP04725306 A EP 04725306A EP 04725306 A EP04725306 A EP 04725306A EP 1625651 B1 EP1625651 B1 EP 1625651B1
Authority
EP
European Patent Office
Prior art keywords
shaft
region
compact drive
gear
output shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP04725306A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1625651A2 (de
Inventor
Thomas Leichter
Jochen Mahlein
Josef Schmidt
Bernhard KÖHLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEW Eurodrive GmbH and Co KG
Original Assignee
SEW Eurodrive GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE10328228.9A external-priority patent/DE10328228C5/de
Application filed by SEW Eurodrive GmbH and Co KG filed Critical SEW Eurodrive GmbH and Co KG
Publication of EP1625651A2 publication Critical patent/EP1625651A2/de
Application granted granted Critical
Publication of EP1625651B1 publication Critical patent/EP1625651B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly

Definitions

  • the invention relates to a compact drive.
  • a compact drive which comprises an electric motor, at one end face of a transmission and at the other end side of a converter is arranged.
  • the electronics area or the motor area must be sealed against the gearbox.
  • the disadvantage here is that a large axial length is available and only on one end face of the compact drive an output can be provided.
  • the invention is therefore the object of developing a compact drive while avoiding the aforementioned disadvantages.
  • axial length should be saved and as many output variants, ie one-sided and double-sided output be executable.
  • Essential features of the invention in the compact drive are that it comprises at least an electric motor, a transmission and a converter, wherein the output shaft of the transmission and the rotor shaft are arranged parallel to each other, wherein rotor shaft and at least one output shaft of the transmission are mounted in the same housing part, wherein the inverter is arranged laterally of the rotor shaft, wherein the transmission area is sealed against the environment and against the area of the engine and against the electronics area, wherein a thermal insulation is provided between the electronics space area and the engine compartment area.
  • the advantage here is that axial length can be saved and one-sided and double-sided downforce is executable.
  • the electric motor is a synchronous motor.
  • the advantage here is that highly dynamic positioning tasks can be performed by the compact drive and / or a high torque over the entire speed range is available.
  • the inverter is arranged laterally of the rotor shaft and the output shaft of the transmission.
  • the advantage here is that length can be saved and both sides of the output shaft are accessible, so a bilateral output is providable.
  • the transmission area is sealed against the environment and against the area of the engine and against the electronics area.
  • the advantage here is that the transmission range may include lubricating oil and the electronics and the stator and rotor parts remain protected from the lubricant.
  • the transmission area, the area of the motor and the electronics room area are at approximately the same temperature level.
  • the advantage here is that no thermal insulation is necessary and thus material, mass and cost can be saved.
  • the motor comprises a transmitter arranged at one end of the rotor shaft.
  • the compact drive can be used for positioning tasks and the encoder is protected by the housing of the compact drive.
  • a brake can be connected, which is also protected by the housing of the compact drive.
  • the motor contains no encoder, but the position is determined by means of an estimation method whereby axial space is saved.
  • a significant advantage of the invention is also that the rotor shaft remains completely inside the housing and thus no seals from the rotor shaft to the environment are necessary. So it is sufficient so a single shaft seal, which runs on the rotor shaft. Since the rotor shaft can have a high speed, thus the heat production is much smaller than in a motor having two shaft seals, in particular at its two axial ends of the rotor shaft.
  • the output shaft has, for example, three shaft seals. But since the speed is much lower than in the rotor shaft, the total production of heat is smaller than in a drive solution in which both the rotor shaft and the output shaft has two shaft seals.
  • At least one spur gear is used, whereby the axial length decreases and a cost-optimal solution arises.
  • the gear stage is designed as an adjusting gear with a variable gear ratio, whereby the wear of the gear stage minimized by the speed range and the torque ratio is adapted to the load case. It is advantageous in the case of the adjusting mechanism that even all seals to the engine compartment can be dispensed with, since an adjusting mechanism, in particular a wedge-belt transmission, requires no or only negligible quantities of lubricant. Thus, only seals from the interior of the compact drive to the outside environment are necessary.
  • rotor shaft and output shaft of the transmission are mounted in the same housing part.
  • the advantage here is that an accurate alignment of the waves each other already during the manufacture and processing of the housing part can be achieved. Because the housing part is finished in only one clamping and thus the relative position of the bearing seats aligned with each other very precisely.
  • FIG. 4 an inventive compact drive is drawn in an oblique view, wherein the transmission 40 is indicated only symbolically.
  • FIG. 1 an inventive compact drive is drawn in an oblique view.
  • FIG. 2 an inventive compact drive is shown cut.
  • FIG. 3 an inventive compact drive is shown cut, in which, in contrast to FIG. 2 the inverter is disposed on the other side of the output shaft than the engine.
  • FIG. 5 a further embodiment of the invention is shown, wherein a three-stage gear is executed.
  • FIG. 6 shows a different view as in FIG. 5 .
  • FIG. 7 shows an exterior view of the embodiment according to FIG. 5 .
  • the symbolically indicated transmission 40 in FIG. 4 is executed in different embodiments of the invention in each case different.
  • it is designed as a spur gear, which in the Figures 2 and 3 also clarified.
  • the transmission is off FIG. 4 designed as adjusting.
  • This variator is executable either in the manner of a VARIMOT transmission from SEW-EURODRIVE, ie with two discs rubbing against each other, or in the manner of a VARIBLOC transmission from SEW-EURODRIVE executable, ie as Breitkeilriemengetriebe the distance between two tapered adjusting the Determine translation.
  • a chain is advantageously used instead of a V-belt.
  • the motor is arranged laterally from the output shaft.
  • the rotor shaft 13 and the output shaft 8 are therefore parallel arranged.
  • the center distance of these shafts is determined by the toothing parts of the spur gear, which consists of one with the rotor shaft 13 positively and / or non-positively connected pinion 14 and a gear designed as a spur gear 10 which is connected to the output shaft 8.
  • the spatial region of the transmission that is to say the spur gear stage, is designed to be sealed off from the spatial region of the electric motor.
  • the shaft sealing ring 15 seals off these space regions on the rotor shaft, since the rotor shaft carries the permanent magnets 12 in the spatial region of the engine and the pinion 14 in the spatial region of the transmission.
  • the shaft sealing ring 5 seals the spatial region of the transmission from the spatial region of the engine on the output shaft 8 is designed as a hollow shaft.
  • the output shaft is not hollow shaft but formed as a solid shaft. Furthermore, it is also possible to design the output shaft in accordance with the standard for robot interfaces, resulting in a very compact output with a small axial length.
  • the output shaft 8 is mounted on the bearing 1 in the same housing part 21, in which the rotor shaft 13 is mounted on the bearing 18.
  • the housing parts 21 and 22 are provided with cooling devices 4 for dissipating the heat generated in the engine, transmission and inverter.
  • the output shaft 8 is in turn mounted in the same housing part 22 via the other, axially opposite bearing (6, 9), in which the rotor shaft 13 is also supported via the other bearing 20.
  • a major advantage of the compact drive is that no coupling between the engine and gearbox is necessary and thus eliminates additional parts.
  • motor and gearbox even use the same housing parts together.
  • a precise alignment of the shafts to each other already in the manufacture and processing of the housing part can be achieved by bearing seats for engine and transmission, in particular for example the bearings 9 and 20, in their relative position to each other during manufacture are very precisely fixed.
  • the housing part can be finished in only one machine tool in a single clamping and thus the relative position of the bearing seats very precisely aligned with each other.
  • Another advantage of the common use of a housing part is that the compact drive in this way not only requires a small volume of construction but also has a particularly high stability, since the forces of the motor and the transmission are conducted within the same housing part to each other.
  • the stator 11 with the stator windings 16 is arranged around the rotor shaft 13.
  • This electric motor is designed as a multi-phase synchronous motor.
  • any other motors can be integrated into the compact drive instead of the synchronous motor.
  • the electronics compartment 17 for the inverter is not sealed to the space region of the motor.
  • the motor carries at its one axial end a resolver comprising a resolver 19 and a resolver rotor 23.
  • angle sensors or angular velocity sensors can be provided instead of the resolver. Also is at Other embodiments of the invention can be integrated on the opposite side of the angle sensor a brake in the compact drive.
  • the inverter is operated such that, by a method, the angle value is estimated using a suitable engine model.
  • the angle value is estimated using a suitable engine model.
  • FIG. 2 another variant of an embodiment of the invention is shown, in which the electronics space portion 31 is not directly to the space region of the engine but the output shaft 8 is located therebetween.
  • the shaft seal 5 seals the space area of the transmission from the electronics compartment 31, wherein the shaft seal 5 runs on the output shaft 8 and sits in the housing part 21.
  • the gear area is filled with lubricant, such as lubricating oil, grease or the like.
  • thermal insulation between two or more of the space areas are providable.
  • the motor is designed to be highly poled, in particular eight- or ten-pole.
  • the engine is advantageous in the manner of
  • the output shaft and the output-side housing part in the manner of the robot interface EN-ISO 9402 -1 executed.
  • axial length can be saved and a high torque transferable.
  • compatibility is achieved with corresponding, to be driven and connected devices.
  • connection devices are provided on the back of the housing and therefore in the FIGS. 1 to 4 not visible. In other embodiments of the invention, however, other positions for the connection devices are providable.
  • connection devices are designed only as a power supply.
  • only power cables are routed to the compact drive.
  • the data transmission to or from the converter, which is necessary for the data communication, to another, in particular higher-order, unit takes place by means of modulating on the power lines.
  • the modulation can be carried out in a known manner, in particular as is known from power line communication or according to the FSK or according to the FH / PSK method, ie frequency hopping phase shift keying.
  • the housing cover 51 is provided to cover the electronics and with the housing part 52 tight and firm, but releasably connected.
  • the housing cover also serves to dissipate the heat of the power electronics 55 and is thermally conductive with this connected.
  • the housing cover smooth grooves 54, so substantially parallel wave-shaped projections and depressions, which include heat sink function, with liquids, such as water or juice, can drain quickly and easily and thus the risk of corrosion and fouling of the housing is reduced.
  • the housing part 52 has a housing-forming function for the engine and the transmission, wherein a lower housing cover 53 is provided on it.
  • the electronics comprise a plurality of circuit boards, which are connected to one another electrically and / or mechanically.
  • the rotor shaft of the motor is mounted on the bearings 57 and 60 in the housing part 52 and is connected at one of its ends with an angle encoder 61.
  • the laminated stator core 59 is connected in the housing part 52.
  • the board 62 is designed with connection devices for motor supply lines and power supply lines. Other lines are here connectable, such as temperature sensor lines for the stator windings of the motor and lines of the one end of the rotor shaft provided angle encoder 61.
  • Other lines are here connectable, such as temperature sensor lines for the stator windings of the motor and lines of the one end of the rotor shaft provided angle encoder 61.
  • the connector part 58 which is connected to the board 62, in particular soldered, and the corresponding counter-connector part 63rd , which is connected to the circuit board 56, the signal electronics and power electronics is electrically connected.
  • the power supply of the electronics is also supplied to the board 62 via PG glands 173.
  • the pinion 64 is fixedly connected to the rotor shaft, in particular advantageously designed in one piece, wherein the pinion 64 with a gear 66 is engaged, which is mounted on a first intermediate shaft, which in turn carries a pinion shaft portion 74.
  • This latter pinion shaft portion is engaged with a gear 67 mounted on a second intermediate shaft.
  • the bearings 65 and 69 serve to support the second intermediate shaft, which carries the gear 67 and includes a pinion shaft portion 68.
  • the Pinion shaft portion 68 is engaged with a gear 71 which is mounted on the output shaft 73, which is designed as a hollow shaft.
  • the output shaft 73 is mounted in the housing part 52 via bearings 70 and 72.
  • first intermediate shaft mounting hole 171 and the second intermediate shaft mounting hole 172 are shown. These are tightly sealed with suitable covering agents.
  • the PG glands 173 are provided on the housing part 52 and serve the passage of cables to the connection devices of the board 62. From there electrical traces lead to the connector 58 and from there via the connector 63 and the board 56 to the electronics. From the power electronics 55, the power lines for the motor again pass through the board 56 and the connectors 58 and 63 and the connectors on the board 62 to the stator of the motor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • General Details Of Gearings (AREA)
  • Transmission Devices (AREA)
  • Structure Of Transmissions (AREA)
EP04725306A 2003-05-09 2004-04-02 Kompaktantrieb Expired - Lifetime EP1625651B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10321093 2003-05-09
DE10328228.9A DE10328228C5 (de) 2003-05-09 2003-06-24 Kompaktantrieb
PCT/EP2004/003492 WO2004100340A2 (de) 2003-05-09 2004-04-02 Kompaktantrieb

Publications (2)

Publication Number Publication Date
EP1625651A2 EP1625651A2 (de) 2006-02-15
EP1625651B1 true EP1625651B1 (de) 2011-07-13

Family

ID=33435969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04725306A Expired - Lifetime EP1625651B1 (de) 2003-05-09 2004-04-02 Kompaktantrieb

Country Status (5)

Country Link
US (1) US7452298B2 (pt)
EP (1) EP1625651B1 (pt)
AU (1) AU2004237280B2 (pt)
BR (1) BRPI0409775B1 (pt)
WO (1) WO2004100340A2 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005048435A1 (de) 2003-11-13 2005-05-26 Sew-Eurodrive Gmbh & Co. Kg Kompaktantrieb
US9698650B2 (en) * 2014-06-02 2017-07-04 Regal Beloit America, Inc. Electric device, gearbox and associated method
US10965183B2 (en) * 2019-06-14 2021-03-30 Honeywell International Inc. Integrated traction drive system

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3149499A (en) * 1961-05-16 1964-09-22 Falk Corp Pinion mount
DE7718904U1 (de) 1976-06-16 1978-05-11 Fiat S.P.A., Turin (Italien) Stufenloses Kegelscheibenumschlingungsgetriebe für ein Motorfahrzeug
JPH0498860U (pt) 1991-01-24 1992-08-26
US5568858A (en) * 1994-10-20 1996-10-29 Vickers, Incorporated Power drive unit for aircraft cargo handling systems
US6155364A (en) * 1996-02-21 2000-12-05 Toyota Jidosha Kabushiki Kaisha Hybrid drive system wherein planetary gear mechanism is disposed radially inwardly of stator coil of motor/generator
US5950797A (en) * 1996-02-29 1999-09-14 Kone Oy People mover and drive apparatus
DE19714784A1 (de) 1997-04-10 1998-10-22 Danfoss As Kompaktantrieb
DE19751231A1 (de) * 1997-11-19 1999-06-10 Abb Research Ltd Antriebsvorrichtung
DE19913833A1 (de) * 1998-03-27 1999-10-07 Bender Gmbh & Co Kg Dr Antriebssystem zur Übertragung rotierender Bewegungen
GB2347277B (en) 1998-09-04 2003-08-27 Matsushita Electric Ind Co Ltd Geared motor
IT1302608B1 (it) 1998-10-06 2000-09-29 Adler Spa Dispositivo di regolazione di un generatore elettrico utilizzato suun veicolo
JP3886697B2 (ja) * 1999-04-27 2007-02-28 アイシン・エィ・ダブリュ株式会社 駆動装置
CA2396279C (en) 1999-07-19 2005-05-17 Tokyo R & D Co., Ltd. Motor and production method of motor
JP3553437B2 (ja) * 1999-10-19 2004-08-11 ジヤトコ株式会社 電気式トルクコンバータ
DE10049883A1 (de) 2000-10-10 2002-04-25 Bob Boboloski Gmbh Mehrphasenmotoren mit Wicklungen ohne Spulenüberlappung
DE20107324U1 (de) 2001-04-27 2001-06-28 RK Rose + Krieger GmbH & Co. KG Verbindungs- und Positioniersysteme, 32423 Minden Verstellantrieb
DE20107326U1 (de) 2001-04-27 2001-06-28 Rose & Krieger Gmbh Co Kg Elektromotorische Verstelleinrichtung
JP2002336305A (ja) 2001-05-17 2002-11-26 Moric Co Ltd ブレーキ付モータ装置
DE20207519U1 (de) 2002-05-13 2002-07-25 Rose & Krieger Gmbh Co Kg Elektromotorischer Stellantrieb
DE10317749A1 (de) 2002-07-05 2004-01-29 Sew-Eurodrive Gmbh & Co Kg Mehrphasenmotor

Also Published As

Publication number Publication date
WO2004100340A2 (de) 2004-11-18
EP1625651A2 (de) 2006-02-15
BRPI0409775A (pt) 2006-05-30
WO2004100340A3 (de) 2005-01-13
AU2004237280A1 (en) 2004-11-18
BRPI0409775B1 (pt) 2020-12-01
US7452298B2 (en) 2008-11-18
AU2004237280B2 (en) 2009-10-29
US20070142139A1 (en) 2007-06-21

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